11. I make a measurement in meters. What is the smallest unit I should record? a. a meter c. a millimeter
b. a tenth of a kilometer d. a decimeter
12. A number like 5.0103 g is identified as having significant figures.
a. 3 c. 5
b. 4 d. too many to count

you need to give more information

quartz

explanation:

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.